Recent questions tagged OOP

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796 views

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oop - What are the benefits of the Iterator interface in Java?

I just learned about how the Java Collections Framework implements data structures in linked lists. From what ... greatly appreciated. Thanks. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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831 views

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oop - How would I translate a Haskell type class into F#?

I'm trying to translate the Haskell core library's Arrows into F# (I think it's a good exercise to understanding ... ll have to be good enough? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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742 views

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oop - Why would I ever use a Chain of Responsibility over a Decorator?

I'm just reading up on the Chain of Responsibility pattern and I'm having trouble imagining a scenario when I would ... CoR have a niche use? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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840 views

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oop - When to use mixins and when to use interfaces in Dart?

I'm very familiar with the concepts of interfaces and abstract classes, but not super familiar with the concepts of ... other (for some reason). See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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756 views

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oop - c++: Difference between member and non member functions

What is the difference between member and non-member functions in C++? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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903 views

1 answer

oop - How can I split a javascript application into multiple files?

I created a javascript application with all of the code in one file. The application has grown quite a bit ... . Does anyone have suggestions? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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908 views

1 answer

oop - Why can't I overload constructors in PHP?

I have abandoned all hope of ever being able to overload my constructors in PHP, so what I'd really like ... other languages nicer than PHP? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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690 views

1 answer

oop - Can anyone provide an example of the Liskov Substitution Principle (LSP) using Vehicles?

The Liskov Substitution Principle states that a subtype should be substitutable for that type (without altering the ... of the concept. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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702 views

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oop - Object Oriented questions in Javascript

I've been using javascript for a while, but have never learned the language past the basics. I am reading John ... the great answers - Thanks! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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679 views

1 answer

oop - Should Java methods be static by default?

Say you're writing method foo() in class A. foo doesn't ever access any of A's state. You know ... large number of internal static methods? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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759 views

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oop - Spring and the anemic domain model

So, I've noticed that I definitely have a tendency to pattern my Spring/Hibernate stack objects like this: Foo ... you think procedural is fine? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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638 views

1 answer

oop - Can we use Interfaces and Events together at the same time?

I'm still trying to wrap my head around how Interfaces and Events work together (if at all?) in VBA. ... Interfaces and Events together in VBA? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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722 views

1 answer

oop - Achieving polymorphism in functional programming

I'm currently enjoying the transition from an object oriented language to a functional language. It's a ... there other good alternatives? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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672 views

1 answer

oop - What is immutability and why should I worry about it?

I've read a couple of articles on immutability but still don't follow the concept very well. I made a ... and thus I benefit from immutability. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

832 views

1 answer

oop - Encapsulation vs Data Hiding - Java

Interviewer: What is encapsulation and how do you achieve it in Java? Me: Encapsulation is a mechanism to ... implement Encapsulation in Java? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

715 views

1 answer

oop - Must Dependency Injection come at the expense of Encapsulation?

If I understand correctly, the typical mechanism for Dependency Injection is to inject either through a class' ... my own question below. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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729 views

1 answer

oop - Constructors in Go

I have a struct and I would like it to be initialised with some sensible default values. Typically, the thing to ... this type of thing in Go? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

593 views

1 answer

oop - How do I parametrize response parsing in Java?

I'm writing a network class and want to be able to parse different responses to different classes (there's ... still the same type errors. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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802 views

1 answer

oop - Cannot use concatenation when declaring default class properties in PHP?

When declaring default values for properties in a PHP class, it appears you can not use concatenation. Is there a reason ... = __DIR__ . '/'; } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

614 views

1 answer

oop - What is indirect object notation, why is it bad, and how does one avoid it?

The title pretty much sums it up, but here's the long version anyway. After posting a small snippet of perl code ... is worthy of its own post. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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974 views

1 answer

oop - Why are python static/class method not callable?

Why are python instance methods callable, but static methods and class methods not callable? I did the following ... __set__, __del___) defined. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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807 views

1 answer

oop - What is the difference between classes and object instances?

A class is a binding of methods and variables in a single unit. An object is an instance of a class. These ... of class? Can you clarify? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

718 views

1 answer

oop - Why friend directive is missing in Java?

I was wondering why Java has been designed without the frienddirective that is available in C++ to allow finer ... if added to the language. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

682 views

1 answer

oop - PHP's function to list all objects's properties and methods

Is there a function to list all object's public methods and properties in PHP similar to Python's dir()? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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711 views

1 answer

oop - Final interface in Java?

Can an interface be declared as final in Java? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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825 views

1 answer

oop - Overloading functions

Is there a way to have two functions with the same name but with different arguments inside the same class in Matlab? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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729 views

1 answer

oop - How does the C++ compiler know which implementation of a virtual function to call?

Here is an example of polymorphism from http://www.cplusplus.com/doc/tutorial/polymorphism.html (edited for ... missing something obvious...) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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620 views

1 answer

oop - In Python, when are two objects the same?

It seems that 2 is 2 and 3 is 3 will always be true in python, and in general, any reference to ... Does it vary according to implementation? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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